Hi Guys,
Infrequent AA flyer here. I just booked a basic economy fare for LHR-ORD-LHR on 125 stock and selected MCE seats (as a OneWorld emerald).
Checking expertlfyer, it seems that 8 J K L for LHR-ORD are blocked and when I try to use the AA PNR on the AA website to modify seats, it shows up blocked as well. Does anyone know how I can access these seats or are there special requirements for them?